Patent US4080029A successfully refreshed from Google Patents.
US4080029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug lock
Assignee: Individual
•
Filing: 1976-03-10
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Granted: 1978-03-21
•
Expires: 1996-03-10
Abstract
Abstract An electrical connector comprising a male plug is assembled in a housing which is permanently secured to a wall outlet, the male plug being movable forwardly in the housing into engagement with the terminals of the wall outlet, the housing having a key-operated lock arranged to lock the male plug in its forward position in the housing.
Inventors
- 👤 Raymond St. Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/639; H01R13/6397
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
A lockable electric plug assembly comprising, in combination: a wall outlet, a housing constructed and arranged to be fixedly secured to said wall outlet, carrier-means arranged to be reciprocably mounted in said housing, said carrier means having a locking detent, a conventional male plug assembled in said carrier means and arranged to be moved forwardly by said carrier means into operative engagement with said wall outlet, manually operated means arranged to engage and move said carrier-means forwardly in said housing, key-operated locking means mounted on said housing and arranged to engage the detent of said carrier means and lock said carrier means in its forward position in said housing wherein said male plug is in operative engagement with said wall outlet, and resilient means in said housing arranged to move said carrier-means, with said male plug, rearwardly in said housing when said carrier means is unlocked by said key-operated locking means thereby to disengage said male plug from said wall outlet.
Claim 2
Dependent Claim
161 words
A lockable electric plug assembly comprising, in combination: a wall outlet, a housing constructed and arranged to be fixedly secured to said wall outlet, carrier-means arranged to be reciprocably mounted in said housing, said carrier means having a locking detent, a conventional male plug assembled in said carrier means and arranged to be moved forwardly by said carrier means into operative engagement with said wall outlet, manually operated means arranged to engage and move said carrier-means forwardly in said housing, key-operated locking means mounted on said housing and arranged to engage the detent of said carrier means and lock said carrier means in its forward position in said housing wherein said male plug is in operative engagement with said wall outlet, and resilient means in said housing arranged to move said carrier-means, with said male plug, rearwardly in said housing when said carrier means is unlocked by said key-operated locking means thereby to disengage said male plug from said wall outlet.
Claim 3
Dependent Claim
28 words
A lockable electric plug assembly according to claim 1 wherein said manually operated means comprises a push pin mounted in said housing in operative engagement with said carrier-means.
Claim 4
Dependent Claim
42 words
A lockable electric plug assembly according to claim 2 wherein said resilient means comprises a coil spring assembled in said housing in engagement with the forward end of said carrier-means for resisting, normally, the forward movement of said carrier-means in said housing.
Claim 5
Dependent Claim
19 words
A lockable electric plug assembly according to claim 3 wherein said key-operated locking means is integral with said housing.
References Cited (Backward Citations)
US2259799A
Cited
US3345603A
Cited
US3433886A
Cited
US3428936A
Cited
US3601757A
Cited
US3926494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |